7217864715 has 16 divisors (see below), whose sum is σ = 12050696448. Its totient is φ = 3682156896.

The previous prime is 7217864701. The next prime is 7217864737. The reversal of 7217864715 is 5174687127.

It is not a de Polignac number, because 7217864715 - 2⁴ = 7217864699 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10460329 + ... + 10461018.

It is an arithmetic number, because the mean of its divisors is an integer number (753168528).

Almost surely, 2^7217864715 is an apocalyptic number.

7217864715 is a deficient number, since it is larger than the sum of its proper divisors (4832831733).

7217864715 is a wasteful number, since it uses less digits than its factorization.

7217864715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20921378.

The product of its digits is 658560, while the sum is 48.

The square root of 7217864715 is about 84958.0173674033. The cubic root of 7217864715 is about 1932.5745050315.

The spelling of 7217864715 in words is "seven billion, two hundred seventeen million, eight hundred sixty-four thousand, seven hundred fifteen".